Improvement in crucibles for melting- metals



' epm w adulte. l ,gutter `tett l my www s EDWARD R. PLAYLE, OF GREAT BEND, PENNSYLVANIA.

Letters Patent No, 88,07 2, dated Marchf23. 1869.

IMPROVEMENT IN CRUCIBLES FOR. lVlIJ-llLTIEl G- METALS.

The Schedule referred to in these Letters Patent and making part ox che same,

To all whom it moy cozwefrn:

namely, spin them up, then set them in o mould that is corrugated, or hollow them in by hand. rBhe corrugated form prevents the draught, or blast from cutting out the body :is fast as t does those that are plain.

Claim-L I claim a Crucible, Whose outer'surfaoe is corrugated,

as herein described.

E. R. PLAYLE. Witnesses:

J AMES B. VREDENBURGH, CHARLES O. ODELL. 

